10 minutes? more like 3, i think. i do this journey most lunchtimes. and i like my way better, you get to cross the footbridge.
1. rock up to front of that ugly, ugly tower building
2. turn right just before you go in the door, and go past that ugly, ugly statue of monkeys doing their thing
3. follow the footpath round the corner of the tower building. it should go left.
4. keep walking. don't go into the science or humanities buildings.
5. at this point you should be on the harris st. footbridge. follow this over the road and you'll walk straight into building 6. you'll be on level 4, near a big outdoor area with a cafe. lexicographer's way gets you to 2 sets of stairs, one that goes to level 3 and a longer one that goes to the cafe on level 4. it's just as valid i suppose, but my way has a bridge.